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Cubic Pm3n mesoporous silica isomorphous to SBA-1 with three-dimensional inter-connected pore structures was prepared for the first time in alkaline condition (pH around 9) using sodium silicate as the silica source and cetyltriethylammonium (CTEA + ) bromide as pore-directing agent with the aid of NaCl salt. In contrast to the conventional SBA-1 material prepared in the acidic environment,...
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